<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-03-06</periodOfReport>

    <issuer>
        <issuerCik>0001690680</issuerCik>
        <issuerName>NEWMARK GROUP, INC.</issuerName>
        <issuerTradingSymbol>NMRK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001024896</rptOwnerCik>
            <rptOwnerName>CANTOR FITZGERALD, L. P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2>499 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isTenPercentOwner>1</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Newmark Holdings Exchangeable Limited Partnership Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-03-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>16606726</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.57</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A or Class B common stock, par value $0.01 per share</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>16606726</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>16606726</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeHolding>
            <securityTitle>
                <value>Newmark Holdings Exchangeable Limited Partnership Units(</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A or Class B common stock, par value $0.01 per share</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>23801347</value>
                    <footnoteId id="F4"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>23801347</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Exchangeable limited partnership units (&quot;Units&quot;) of Newmark Holdings, L.P. (&quot;Newmark Holdings&quot;) are exchangeable, at the discretion of the holder, at any time on a one-for-one basis, subject to adjustment, into either shares of the Issuer's Class A common stock, par value $0.01 per share (the &quot;Class A common stock&quot;), or shares of the Issuer's Class B common stock, par value $0.01 per share (the &quot;Class B common stock&quot;).  Shares of Class B common stock are convertible, at any time on a one-for-one basis, subject to adjustment, into shares of Class A common stock.</footnote>
        <footnote id="F2">As previously disclosed, on March 6, 2018, BGC Partners, Inc. (&quot;BGC&quot;), including through its subsidiary BGC Partners, L.P. (&quot;BGC OpCo&quot;) entered into an agreement to purchase an aggregate of 16,606,726 Units for approximately $242.0 million (the &quot;Investment&quot;).  In the Investment, BGC acquired 7,750,487 Units and BGC OpCo acquired 8,856,239 Units. The price per Unit was based on the $14.57 closing price of the Issuer's Class A common stock on March 6, 2018, as reported on the NASDAQ Global Select Market.  The closing occurred on March 7, 2018.</footnote>
        <footnote id="F3">A majority of the voting power of BGC is held by Cantor Fitzgerald, L.P. and its affiliates (&quot;CFLP&quot;).  CFLP disclaims beneficial ownership of all such securities in excess of its pecuniary interest, if any, and this report shall not be deemed an admission that CFLP is the beneficial owner of, or has pecuniary interest in, any such excess securities for purposes of Section 16 of the Securities Exchange Act of 1934 or for any other purpose</footnote>
        <footnote id="F4">Represents Units acquired on December 13, 2017 by CFLP in connection with the separation of the Issuer's business from the remainder of the businesses held by BGC and its subsidiaries.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Howard W. Lutnick, Chairman and Chief Executive Officer, Cantor Fitzgerald, L.P.</signatureName>
        <signatureDate>2018-03-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
